16．Something terrible _________ if he didn't come to the bar as he always did．（　　）
A．should happenB．might happen
C．must have happenedD．can have happened

分析 如果他沒有像他總是的那樣來酒吧，那么可定是有糟糕的事情發(fā)生了．

解答 答案：C
解析：A：應(yīng)該發(fā)生；B：可能發(fā)生；C：一定是做過某事；D：有可能做過某事．根據(jù)后面的"如果他沒有像他總是的那樣來酒吧"可知糟糕的事情"一定"發(fā)生了，故結(jié)合所給選項(xiàng)分析可知本題答案為C選項(xiàng)；其余選項(xiàng)均不符合題意．

點(diǎn)評 本題考查情態(tài)動詞，做此類題目時(shí)一定要先分析各個(gè)選項(xiàng)的含義及其用法再結(jié)合句意選出正確答案．

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